Internal-combustion engine



July 1 2 1927' E. R. BURTNETT INTERNAL C OMBUSTION ENGINE Filed Avril 20. 1926 if 1 llll l 1 01u, d2 2| 1\\ 1.1 1.: l n l k3 0 mdf/ca 1,. A y/f5.4Z/L? LT.. liil-- u l l HNMWIII ,l 01M, Z 0 x oo 2 f mf-ljil L. I.h A V w Q /@70. 1,1,

IAUENTOR l lPatenteil July 12,1927.i

EVERETT R.A URTNTT, o'r' Los ANGELES, oAmroitNrA, Asslreivora- :BY einser Ain MESNE ASSIGNMENTS, jro ann; AUti-oMo'rIvs VALVfEs Consoli-Arron, or nano, NEVADA, A ooRroRAroiv orNnVADA. v

rNTERNAL-oonsosrion vMy invention relates :to internal combii`stion engines, vand pziiticularly` to a'cylinder head for sleeve valve engines7 in which `inlet Vand exhaust ports are ari angerl to establish port and passageV communication 'with the combustion chamber, at the head end. y The principal object beingto provide cylinder headadapted to beaipplied to the 'engin-e, in a position which willpermit Athc 1U sleeve valve reciprocating over the cylinder head, in a telescoping manner and to Vform the cylinder head with an inlet passage and exhaust recesses, ywhich will Vaccomplish fresh charge stratification, :ei'hcicnt scavenging of the 'residual products or' combustion ftrointhe combustion eliainb'ei and localization o'l a sulicient quantity or' fresh gaseous mixture, adjacent to the spark plug, to obtain uniform and regular combustion, when theengin'e is operated at light load or heavy load. I lVith the foregoing, and other Vobjects in view7 my invention consists ink certain novel features of construction and arrangement or' parts that will be hereinafter more fully described and claimed and illiistr'atedin 'the aecoinpanyin drawings in 'which z p F ig. 1 is a vertical Asection tal''eiji through I the center of the combustion ohani'ber of a 3U sleeve valve engine showing the feylinder head of improved construction, the plane of the cutting edge intersecting the two oppositely disposed exhaust recesses. v

Fig. 2 is a vertical section taken through the center of the combustion cylinder with the plane ot the cutting edge takenat right angle to the plane of th ,lustrated in Fig. 1.

Fig. 3 is a. horizontal section 3 3 of `Fig. 1.

taken on line in,

VReferring by numerals to theaccompaiiy! ing drawings which illustrate a practical enibodiment or' my invention, 10 designates aA cylinder. a sleeve valve l1 is arranged for ton 12 is arranged for reciprocatory movement within the sleeve valve, and a cylinderV head 13 is arranged as a depending member,

adapted to lit within the bore of the sleeve 5 valve, inlet ports 14, are formed at two points of the sleeve valve, in diametrically oppositev e cutting edge as il-V slidable movement within the cylinder, a pisaspirants site April so, ieee. 'semi wages;

position, the inlet and exl'ia'i'i'stpoits `occiipyf ing substantially vthe saine plane, tliesaid plane of the ports being at right angle to the axis of the sleeve valve; V

l A traverse 4passage 16 is formed throii'gli the cranl'ward eiid of the cylinder head and the cylinder lhead is 'arranged in a position relative to the locatioii'of` thelinl-et ports. formed inthe sleeve valve, which will facilitate-the registration olr the inlet portsiiornied in the .sleeve "valve, with the sai-d traverse passage forined in the cylinder' head,` at time 'such poi-t and passage registration is desired. n

Exhaust' recesses 17 are formed in the peiipher V treme end of the substantially the same plane `asthe lplan-ey of the traversepassage 16.

v ol the cylinder head, at the 'ex` said Cylinder vh'eadaiid in lill cesses are located in the cylinder head lin av position whichwill facilitate the yregistrationJ of the exhaust ports 15,'wi`tlithesaid recesses-*at the desired time relative tothe movement 'of the sleeve valve'll. An outlet venturi formed throat 18 is foi-ined "through the end of ythe cylinder head1;v establishing passage communication between the piston sweep chamber 19 and Ythe traverse passage 16. f

The traverse sweep chamber, and aisparl plug 20 is provided and secured in the cylinder head in a position, which will enable thesparking termlalS t0 protrude into the said traverse pas- Sage in theV cylinder head.

Thevolume movement'through and about -the cylinder head is described as follows:

- Assuming the piston 12 is at cranlrward' dead center, the sleeve valve 11 will be approximately inthe position of crank end dead center, the exhaust ports 15 will be open to the combustion chamber, the residual gases will be exiting therefrom, through the recesses 17 formed-in the crank end of the cylinder head, theinlet `ports 14 of the sleeve'valve will be open to theV transf verse passage 16,V a preconipressedY fresh charge ofgaseous mixture vwill be kpassingA in columnrinovenient, through the said inlet ports of the sleeve valve, through the transversepassage 16 of the cylinder head,

the two columns engaging at the center ofl lthe transverse passage the inlet charge will be diverted crankwardly, Apassing into the piston sweep chamber' through the venturi formed throat 18, formed in the end and center of the cylinder head.

Y lThe velocity of theV fresh charge being inducted, will direct the charge to the crankward end of the piston sweep chamber,`at

' which point it will `engage the piston head,

a scavenging action of the piston sweep chamber of'residual products of combustion will be the result. Then the chamber has been scavenged and at a time the piston within the sleeve valve has passed crank end dead center, the exhaust and inlet ports f will be cut off of registration with the chamber and compression of the fresh charge inducted, will take place within the chamber by the headward movement of thek in the size, form and construction of the variousk parts of my improved construction maybe made and `substituted for those herein shown and Adescribed without depart Ving from the spirit of the invention, the scope of, which is set forth in the appended claims.

I claim as my invention:

lf In an internal combustion engine, a sleeve valve, a depending cylinder head,

a transverse passage in the abutment of the said cylinder head, the said transverse passage extending,- centrally through the said head' Withopenings through the periphery of the said head at oppositely disposed points, two oppositely disposed recesses formed at the end edge of the abutment of the cylinder head, the said recess being in substantially the same plane as the plane ofthe said transverse passage, the said recessesbeing formed at points equally disposed circumferentially between the said openings of the transverse passage through the peripheryof the said cylinderhead; -a venturi formed throat formed at the center of the said cylinder head, said throat providing a central opening cranlwardly from the said trans verse passage, the roof of the said recesses being formed as a semi-circular contour extending headwardly and radially, and ignition means located in the cylinder head with thel sparking terminals extending into the transverse passage in the said cylinder head.

2. A depending cyinder head forV sleeve valve type internal combustion engines, a transverse fresh charge inlet passage formed in the said cylinder head, inlet openings of l the said transverse passage formed through the periphery of the said cylinder head at each end of the said transverse passage; an outlet opening of the saidrtransverse vpassage formed in the end ofthe said cylinder head, recesses formed in the end edge of the said cylinder'head for the deflection of the residual gases within the chamber enclosed by the said cylinder head, and ignition means located in the cylinder head, the sparking terminals of which protrude into the said transverse charge inlet passage.

In testimony whereof, I hereto affix my i signature;

EVEBETT R. BURTNETT. 

